1.1 This test method covers the assay of di- tert-butyl peroxide using gas chromatography. It is applicable to commercial di-tert-butyl peroxide which may contain small amounts of isobutylene, tert-butanol, tert-butyl hydroperoxide, triisobutylenes, and water as impurities.1.2 Review the current appropriate Material Safety Data Sheets (MSDS) for detailed information concerning toxicity, first aid procedures, and safety precautions.1.3 The values stat